We can't believe these tiny sculptures (created by artist Jonty Hurwitz) are thinner than the width of a human hair and relatively detailed for their size. If you wanted to see them, though, you'd need to have an electron microscope handy.

We address the divisive topic of crowdsourced charity after viewing a humbling YouTube video this week that showed a homeless man receiving a free extreme makeover for a day. What do you think? Let us know in the comments!

Whoever becomes Mozilla's permanent boss must figure out how to promote the Firefox technology, decide whether reliance on Google is a good thing, and set the right balance between idealism and pragmatism.